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Editorial Team
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Asked: 2026-06-11T01:01:41+00:00

I’m trying to customize the mongolab example to fit my own REST API. Now

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I’m trying to “customize” the mongolab example to fit my own REST API. Now I’m running into this error and I am not sure what I am doing wrong:

Error: Unknown provider: ProductProvider <- Product
    at Error (unknown source)
    at http://localhost:3000/js/vendor/angular.min.js:28:395
    at Object.c [as get] (http://localhost:3000/js/vendor/angular.min.js:26:180)
    at http://localhost:3000/js/vendor/angular.min.js:28:476
    at c (http://localhost:3000/js/vendor/angular.min.js:26:180)
    at d (http://localhost:3000/js/vendor/angular.min.js:26:314)

This is my controller:

function ProductListCtrl($scope, Product) {
  $scope.products = Product.query();
}

and this is the module:

angular.module('productServices', ['ngResource']).
    factory('Product', ['$resource', function($resource){
      var Product = $resource('/api/products/:id', {  }, {
        update: { method: 'PUT' }
      });

      return Product;
    }]);
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1 Answer

  1. Editorial Team

    Your code looks good, in fact it works (apart from the calls themselves) when copied & pasted into a sample jsFiddle: http://jsfiddle.net/VGaWD/

    Hard to say what is going on without seeing a more complete example but I hope that the above jsFiddle will be helpful. What I’m suspecting is that you are not initializing your app with the ‘productServices’ module. It would give the same error, we can see this in another jsFiddle: http://jsfiddle.net/a69nX/1/

    If you are planning to work with AngularJS and MongoLab I would suggest using an existing adapter for the $resource and MongoLab: https://github.com/pkozlowski-opensource/angularjs-mongolab
    It eases much of the pain working with MongoLab, you can see it in action here: http://jsfiddle.net/pkozlowski_opensource/DP4Rh/
    Disclaimer! I’m maintaining this adapter (written based on AngularJS examples) so I’m obviously biased here.

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